I can't say there the best, but there are definitely reliable, I have four that I rotate between two torches. Have 5 mates who also have them too, been running them since late last year without issue. They were what was recommended by eveyone on this site last year too..
There are 3000mAh on available but at almost double the price of these.. but I'd just buy more of these as overall they'd last longer than the 500mAh you gain.
Though protected are the way to go IIRC.
Better more intelligent charger are availabel too, but this one does the job and is inexpensive.
Charger http://www.dealextreme.com/details.dx/sku.6105
Batteries http://www.dealextreme.com/details.dx/sku.5790
on and one of these http://www.dealextreme.com/details.dx/sku.2709 to convert the charger, or you could just chop the plug off and wire on a UK one.